Hi... I recently contacted Wysong to get a sample of their new formula of the epigen 90 Well yesterday in the mail I got a 2 pound bag of their epigen 90 prototype...it came with a note saying they discontinued their new formula because of too many complaints of stomachs upsets and this is a prototype that is much closer to the original formula. I mixed a little bit in with my ferrets other food and they love it and so far their has been no stomachs problems or problems of any type with this food version. I'm interested to know if anyone else received the 2 lb prototype and how their ferrets are doing on the food. The note Also said that if everything goes well with this formula they will officially release this food. Thank you!!! Kathy [Posted in FML 8134]